]>
git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - include/linux/sysfs.h
2 * sysfs.h - definitions for the device driver filesystem
4 * Copyright (c) 2001,2002 Patrick Mochel
5 * Copyright (c) 2004 Silicon Graphics, Inc.
6 * Copyright (c) 2007 SUSE Linux Products GmbH
7 * Copyright (c) 2007 Tejun Heo <teheo@suse.de>
9 * Please see Documentation/filesystems/sysfs.txt for more information.
15 #include <linux/compiler.h>
16 #include <linux/errno.h>
17 #include <linux/list.h>
18 #include <asm/atomic.h>
24 * The *owner field is no longer used.
25 * x86 tree has been cleaned up. The owner
26 * attribute is still left for other arches.
34 struct attribute_group
{
36 mode_t (*is_visible
)(struct kobject
*,
37 struct attribute
*, int);
38 struct attribute
**attrs
;
44 * Use these macros to make defining attributes easier. See include/linux/device.h
48 #define __ATTR(_name,_mode,_show,_store) { \
49 .attr = {.name = __stringify(_name), .mode = _mode }, \
54 #define __ATTR_RO(_name) { \
55 .attr = { .name = __stringify(_name), .mode = 0444 }, \
56 .show = _name##_show, \
59 #define __ATTR_NULL { .attr = { .name = NULL } }
61 #define attr_name(_attr) (_attr).attr.name
63 struct vm_area_struct
;
65 struct bin_attribute
{
66 struct attribute attr
;
69 ssize_t (*read
)(struct kobject
*, struct bin_attribute
*,
70 char *, loff_t
, size_t);
71 ssize_t (*write
)(struct kobject
*, struct bin_attribute
*,
72 char *, loff_t
, size_t);
73 int (*mmap
)(struct kobject
*, struct bin_attribute
*attr
,
74 struct vm_area_struct
*vma
);
78 ssize_t (*show
)(struct kobject
*, struct attribute
*,char *);
79 ssize_t (*store
)(struct kobject
*,struct attribute
*,const char *, size_t);
86 int sysfs_schedule_callback(struct kobject
*kobj
, void (*func
)(void *),
87 void *data
, struct module
*owner
);
89 int __must_check
sysfs_create_dir(struct kobject
*kobj
);
90 void sysfs_remove_dir(struct kobject
*kobj
);
91 int __must_check
sysfs_rename_dir(struct kobject
*kobj
, const char *new_name
);
92 int __must_check
sysfs_move_dir(struct kobject
*kobj
,
93 struct kobject
*new_parent_kobj
);
95 int __must_check
sysfs_create_file(struct kobject
*kobj
,
96 const struct attribute
*attr
);
97 int __must_check
sysfs_chmod_file(struct kobject
*kobj
, struct attribute
*attr
,
99 void sysfs_remove_file(struct kobject
*kobj
, const struct attribute
*attr
);
101 int __must_check
sysfs_create_bin_file(struct kobject
*kobj
,
102 struct bin_attribute
*attr
);
103 void sysfs_remove_bin_file(struct kobject
*kobj
, struct bin_attribute
*attr
);
105 int __must_check
sysfs_create_link(struct kobject
*kobj
, struct kobject
*target
,
107 int __must_check
sysfs_create_link_nowarn(struct kobject
*kobj
,
108 struct kobject
*target
,
110 void sysfs_remove_link(struct kobject
*kobj
, const char *name
);
112 int __must_check
sysfs_create_group(struct kobject
*kobj
,
113 const struct attribute_group
*grp
);
114 int sysfs_update_group(struct kobject
*kobj
,
115 const struct attribute_group
*grp
);
116 void sysfs_remove_group(struct kobject
*kobj
,
117 const struct attribute_group
*grp
);
118 int sysfs_add_file_to_group(struct kobject
*kobj
,
119 const struct attribute
*attr
, const char *group
);
120 void sysfs_remove_file_from_group(struct kobject
*kobj
,
121 const struct attribute
*attr
, const char *group
);
123 void sysfs_notify(struct kobject
*kobj
, const char *dir
, const char *attr
);
124 void sysfs_notify_dirent(struct sysfs_dirent
*sd
);
125 struct sysfs_dirent
*sysfs_get_dirent(struct sysfs_dirent
*parent_sd
,
126 const unsigned char *name
);
127 struct sysfs_dirent
*sysfs_get(struct sysfs_dirent
*sd
);
128 void sysfs_put(struct sysfs_dirent
*sd
);
129 void sysfs_printk_last_file(void);
130 int __must_check
sysfs_init(void);
132 #else /* CONFIG_SYSFS */
134 static inline int sysfs_schedule_callback(struct kobject
*kobj
,
135 void (*func
)(void *), void *data
, struct module
*owner
)
140 static inline int sysfs_create_dir(struct kobject
*kobj
)
145 static inline void sysfs_remove_dir(struct kobject
*kobj
)
149 static inline int sysfs_rename_dir(struct kobject
*kobj
, const char *new_name
)
154 static inline int sysfs_move_dir(struct kobject
*kobj
,
155 struct kobject
*new_parent_kobj
)
160 static inline int sysfs_create_file(struct kobject
*kobj
,
161 const struct attribute
*attr
)
166 static inline int sysfs_chmod_file(struct kobject
*kobj
,
167 struct attribute
*attr
, mode_t mode
)
172 static inline void sysfs_remove_file(struct kobject
*kobj
,
173 const struct attribute
*attr
)
177 static inline int sysfs_create_bin_file(struct kobject
*kobj
,
178 struct bin_attribute
*attr
)
183 static inline void sysfs_remove_bin_file(struct kobject
*kobj
,
184 struct bin_attribute
*attr
)
188 static inline int sysfs_create_link(struct kobject
*kobj
,
189 struct kobject
*target
, const char *name
)
194 static inline int sysfs_create_link_nowarn(struct kobject
*kobj
,
195 struct kobject
*target
,
201 static inline void sysfs_remove_link(struct kobject
*kobj
, const char *name
)
205 static inline int sysfs_create_group(struct kobject
*kobj
,
206 const struct attribute_group
*grp
)
211 static inline int sysfs_update_group(struct kobject
*kobj
,
212 const struct attribute_group
*grp
)
217 static inline void sysfs_remove_group(struct kobject
*kobj
,
218 const struct attribute_group
*grp
)
222 static inline int sysfs_add_file_to_group(struct kobject
*kobj
,
223 const struct attribute
*attr
, const char *group
)
228 static inline void sysfs_remove_file_from_group(struct kobject
*kobj
,
229 const struct attribute
*attr
, const char *group
)
233 static inline void sysfs_notify(struct kobject
*kobj
, const char *dir
,
237 static inline void sysfs_notify_dirent(struct sysfs_dirent
*sd
)
241 struct sysfs_dirent
*sysfs_get_dirent(struct sysfs_dirent
*parent_sd
,
242 const unsigned char *name
)
246 static inline struct sysfs_dirent
*sysfs_get(struct sysfs_dirent
*sd
)
250 static inline void sysfs_put(struct sysfs_dirent
*sd
)
254 static inline int __must_check
sysfs_init(void)
259 static inline void sysfs_printk_last_file(void)
263 #endif /* CONFIG_SYSFS */
265 #endif /* _SYSFS_H_ */